Terahertz frequency Hall measurement by magneto-optical Kerr spectroscopy in InAs

DOI PDF 被引用文献15件
  • R. Shimano
    Department of Applied Physics, the University of Tokyo, and Cooperative Excitation Project ERATO, Japan Science and Technology Corporation (JST), Tokyo 113-8656, Japan
  • Y. Ino
    Department of Applied Physics, the University of Tokyo, and Cooperative Excitation Project ERATO, Japan Science and Technology Corporation (JST), Tokyo 113-8656, Japan
  • Yu. P. Svirko
    Department of Applied Physics, the University of Tokyo, and Cooperative Excitation Project ERATO, Japan Science and Technology Corporation (JST), Tokyo 113-8656, Japan
  • M. Kuwata-Gonokami
    Department of Applied Physics, the University of Tokyo, and Cooperative Excitation Project ERATO, Japan Science and Technology Corporation (JST), Tokyo 113-8656, Japan

書誌事項

公開日
2002-07-08
DOI
  • 10.1063/1.1492319
公開者
AIP Publishing

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説明

<jats:p>We report on the time-domain terahertz (THz) magneto-optical Kerr spectroscopy in the frequency range from 0.5 to 2.5 THz. The developed technique employs reflection geometry, enabling high-frequency noncontact Hall measurements in opaque samples. We also present a method to reveal the off-diagonal component of the complex dielectric tensor from the measured polarization-dependent THz wave forms. At a static magnetic field of 0.48 T, a large Kerr rotation over 10° originating from magnetoplasma resonance is observed in an n-type undoped InAs wafer at room temperature. This indicates the strong potential of this material for the polarization modulator in the THz regime.</jats:p>

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